Philosophy (Greek φιλοσοφία literally "wisdom; love of wisdom") is a special form of knowledge of the world, developing a system of knowledge about the most general characteristics, the ultimate generalizing concepts and fundamental principles of reality (being) and cognition, human existence, the relationship of man and the world. The tasks of philosophy throughout the centuries have included both the study of the universal laws of the development of the world and society, and the study of the process of cognition and thinking itself, as well as the study of moral categories and values. Ultimate philosophical questions include, for example, "Is the world cognizable?", "Does God exist?", "What is truth?", "What is good?", "What is Man?", "What is primary - matter or consciousness?", and others.